Apparatus for the sterilization of water or other liquids.



C. S. PIBSTRAK. APPARATUS TOR THE STRRILIZATION 0F WATER 0R OTHERLIQUIDS.

APPLICATION FILED AUG. 29, 1910. 9799990 Patented' D80. 27, 1910.

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N 1T STA'S PATE I i CASIMIR--STANISLAS PIESTRAK, 0F PARIS, FRANCE.

APPARATUS FOR THE STERILIZATION OF WATER O R OTHER LIQUIDS.

Specification of Letters Patent.

i 979,999. Patented ec. 27, 1910.

Application iiied August 29, 1910. serial No. 579,475. .To all 'whom tmay concern: y l series of funnels or convergingy cones 2.

CAsIMiR STANisLAs Be it known that I, These'latter fit one into theother as shown PIESTRAK, a subject of His Majesty the Emand are keptapart by suitable glass rods 2a peror of AustriaLHungary, residing at 45welded to the rims, or in any other suitable 5 Rue Lvis, in the city ofParis and Republic manner.

of France, have invented new and useful Im- The lower cone or element ofthe injector provements iii Apparatus for the Steriliza 2 1S Continueddowiiwardl by a diverging tion 0f X/Vatei 0r other Llquidsby Means oftube y' concentric with tube c and surrounded Ozone, of which thefollowing is a specicaby a secoiidtube j so as to leave an annular l0tion. space between the two, to which the ozonized The present inventionrelates to certain air can have access through the holes jy atimprovement-s in apparatus of the type dethe bottom. The upper mouthof'tube jo is scribed in my French Patent No. 40831-7 of iared as aty'z, the rim of which is slightly January 20, 1909, which are designedfor the higher than the rim of the lowest cone of 15 purpose ofpurifying or sterilizing water or the injector. The object of thisarrangeother liquids by means of ozonization. ment is to preventmoisture fiom penetratly new apparatus which is based on the ing withinthe ozonizer proper (member c), saine principle and has the sameessential or supposing that water fell for some reacharacteristics asthat of my French Patent son into space alo it would accumulate there 20408317 presents certain advantages over this until it reached the levelof the flaring latter from the point of view of ease in conmouth jzwhereupon it would be sucked in struction, operation and simplicity,which by the last cone of the injector. advantages will be evident fromthe follow- The intermediate member c consists of an ing descriptiontogether with the drawings. outer tube within which a second tube cx is25 In the drawings: Figure 1 is a vertical secfitted concentric with``the former. Tube cx tion through the aXis of an apparatus conis openat the bottom and is joined by its structed accordin to my invention.Fig. 2 lower end to tube c either by welding (Fig. is a similar view sowing a slightly different 1) or by a metallic or other fitting luted orarrangement. Fig. 3 is a horizontal section joined by putty, as shown atin Fig. 2. 30 on line 3`3 of Fig. 2. Around tube cx is wound one of theeleca represents the upper .portion or receptatrodes o which. mayconsist either of an cle, b the lower receptacle and c theinteraluminium wire wound spirally, or of a netmediate portion orozonizer proper, the work or gauze of aluminium or other suitwhole beingsimilarly mounted fixed or supable metal, being connected to the current35 ported on a bracket, frame or support d terminal y. A third tube cyis mounted which can be fixed to a wall or erected in any concentricallywithin tube cx and is suitably convenient position'. supported by a ringC10 screwed on the frame e upper portion a is fitted with a or bracketCZ. ground-joint at ax into the intermediate por- Tube @Y is welded attop and bottom to .a 40 tion c within which extends va descending fourthconcentric tube cz around which is portion ay which is also fitted bymeans of a wound the second electrode 79, andbetweeu ground-joint at azinto the Haring upper which and tube cy is formedan annular portion ofthe central tube cz 0f the said space wherein a vacuum is n iaintained.A intermediate member c of the apparatus.`V small quantity of mercury p1is placed with 45 By t is means the different parts of the in this spacein order to insure transmission apparatus can easily be assembled ordisofthe current. The lower end ot electrode mounted. p which can beconstructed in the same way Thetop 0f the upper receptacle @is formed aselectrode 0, or in any other suitable `maninto a 'tube a through whichis admitted the ner, dips into the mercury bath 721, which is 50water-or other liquid to be sterilized. This I connected by terminal rlpassing through the tubeextends downward into the receptacle a tube cyto the'source of e ectricity not shown. as shown at l, terminating atits lower ex- The tube c" is prolonged downwardly by a descending tubeg/ which extends into a tubutremity ina conical outlet la which dipsinto lar member y0 which is open at the top and the upper end of aninjector formed by av tions `y it is again agitated and intimatelylimited to the exact to say as follows:

l erases I claim:

1. 'An apparatusfor sterilizing water and other liquids by means ofozone comprising a vacuum tube, said vacuum tube containing mercury, anelectrode mounted within said vacuum tube, an outer electrode arrangedconcentrically with and surrounding said inner electrode, an air passagebetween said electrodes and means for aspirating air through said airpassage and into contact with the liquid to be sterilized.

2.` An apparatus for sterilizing water and other liquids by means ofozone, comprising a liquid inlet tube, a series of cones forming aninjector, said inlet tube dipping into the uppermost cone of saidinjector, two electrodes, said electrodes being arranged concentricallyone within the other, a vacuum tube within which said inner electrode isi mounted and an air passage between said electrodes communicating withsaid injector and the atmosphere. f

3. An apparatusy for sterilizing water and other liquids by means vofozone, comprising a liquid-inlet tube, a series of cones formin aninjector, rings welded to said cones an holding them superposed, saidinlet tube dipping into said injector, two electrodes, said electrodesbeing arranged concentrically one within the other, a vacuum withinwhich" said inner electrode is mounted and an air passa e between saidelectrodes communicating with said injector and the atmosphere.

4. An apparatus for sterilizing water and other liquids by means ofozone comprising an upper portion, an inlet tube communieatingtherewith, an injector arranged in said upper portion, said injectorconsisting of concentric superposed cones, a tube for the passage of thesaid tube being arranged below and concentric with said cones, an airpassage concentric with and surrounding said liquidpassage tube, saidair passage communicating with the atmosphere and the injector, a lowerportion comprising a central tube forming a continuation of said upperliquidpassage tube, said central tube, said vacuum tube containingmercury, an electrode in said vacuum tube, an air passage surroundingsaid vacuum tube, a second electrode surrounding said air passa e,inclosed by t e -oeuter`wall of said, lower portion.

In witness whereof I have hereunto set my hand in presence of twosubscribing witnesses this 9th day of August 1910.

GASIMIR STANISLAS IIESTRAK.

closed at the bottom and arranged concentrically in the interior of thelower receptacle b of the apparatus. rIhe latter is fitted with anoutlet pipe n which may be provided or not with a cock.

The apparatus works similarly to that described in my French Patent408317 that is The Water or other liquid to be sterilized enters at 1and passing through the extension 1a into the injector produces asuction in the latter, at 3, of ozone or air strongly charged withozone, resulting from the ozonization of the atmospheric air. This airis drawn in by the suction produced at 5 5, enters through the bottom oftube CX the annular space between this tube and tube cy, where it isozonized by the action of the electric discharges which (terminals g andi" being suitably connected to a convenient source of electric current)take place between the electrodes 0 p across the vacuum and across -thespace existing between tubes cY and c". From there the ozone, or aircharged with ozone produced in this manner rises through holes jy,annular space jx and the flaring mouth jz into the upper receptacle a..The ozone or air strongly impregnated with ozone drawn in in this way at3 is sucked in by the liquid into the injector 2 and tube y' where itmixes intimately with the) liquid and sterilizes it. The water or otherliquid being thus sterilized falls through tube y intothe lowerreceptacle b where, owing to the vsinuous path it is forced to travelby. the baifles or partimixed with the ozone and thus insuring itsperfect sterilization before arriving at the outlet pipe n.

Instead of using the arrangement shown in Fig. 1 for the passage of theair laden with ozone from receptacle c to receptacle a, a shunt orby-pass could be arranged between the two, as shown in Fig. 2,consisting of a tube a, made in two parts, with a ground joint at zo. Inthe same way in stead of only a sing e baiiie or partition y0 as shownin Fig. 1, a .number of such baffles could be arranged within the lowerrecepr tacle b`for the sterilized liquid, as shown at y, y1, y, Fig. 2'so that the liquid is forced to travel a longer distance, during whichit is brought into intimate contact with the ozone, before 'reach'ng theoutlet n. The operation is evidently exactly the same in other respectsas in the preceding case.

It will be obvious that my invention is not details of constructionshown, for it ,is evident that they can be alter'ed to a certain extentas necessitated by practical requirements or as may be consideredexpedient.

Witnesses R.- II. BRANDON, M.. H. Iiennfr.

liquid to be sterilized,

a vacuum tube surrounding said second electrode being

